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Supraventricular tachycardia

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https://www.readbyqxmd.com/read/28441823/-evaluation-of-a-low-dose-imaging-protocol-on-radiation-exposure-reduction-in-pediatric-supraventricular-tachycardia-ablation-procedure
#1
F Wang, Y Lu, C Yuan, J R Bai, H S Yang, L Wu
Objective: To evaluate the feasibility and efficiency of a low dose imaging protocol on reducing X-ray dose level in pediatric supraventricular tachycardia (SVT) ablation procedure. Method: Data were collected from 103 patients who underwent catheter ablation for SVT in Children's Hospital of Fudan University from January 2014 to October 2016 in terms of body weight, body surface area (BSA), SVT types, accessory pathway location, fluoroscopy time and the radiation dose (including AIR KERMA and dose area product) in a case observational study...
April 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28440361/the-role-of-echocardiography-in-fetal-tachyarrhythmia-diagnosis-a-burden-for-the-pediatric-cardiologist-and-a-review-of-the-literature
#2
Liliana Gozar, Claudiu Marginean, Rodica Toganel, Iolanda Muntean
Supraventricular tachyarrhythmia represents the most frequent fetal dysrhythmia. In the lack of diagnosis and treatment these fetuses may develop hydrops and even death. For the therapeutic approach it is important to establish the diagnosis of the type of supraventricular tachycardia. In this paper we report 29 cases with different types of supraventricular tachycardia in which the diagnosis was established using our own protocol, which allowed us to make the difference between the types of tachycardia (atrioventricular reentry tachycardia due to the accessory pathway, atrial ectopic tachycardia and permanent junctional reciprocal tachycardia)...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28436586/transesophageal-and-invasive-electrophysiologic-evaluation-in-children-with-wolff-parkinson-white-pattern
#3
Serhat Koca, Feyza Aysenur Pac, Ahmet Vedat Kavurt, Serkan Cay, Ajda Mihcioglu, Dursun Aras, Serkan Topaloglu
BACKGROUND: Risk stratification for Wolff-Parkinson-White (WPW) pattern either by non-invasive or invasive tests is important to determine whether an ablation is necessary or not. The aim was to compare non-invasive tests and invasive studies in a pediatric WPW population. METHODS: A total of 71 WPW patients [median age 14 years (IQR 11 - 16 years); 43 male] underwent Holter monitoring, exercise stress test (EST), and transesophageal electrophysiological study (TEEPS)...
April 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28435092/-terpinen-4-ol-changes-intracellular-ca-2-handling-and-induces-pacing-disturbance-in-rat-hearts
#4
Antonio Nei Santana Gondim, Aline Lara, Artur Santos-Miranda, Danilo Roman-Campos, Sandra Lauton-Santos, José Evaldo Rodrigues Menezes-Filho, Carla Maria Lins de Vasconcelos, Eduardo Antonio Conde-Garcia, Silvia Guatimosim, Jader S Cruz
(-)-Terpinen-4-ol is a naturally occurring plant monoterpene and has been shown to have a plethora of biological activities. The objective of this study was to investigate the effects of (-)-terpinen-4-ol on the rat heart, a key player in the control and maintenance of arterial blood pressure. The effects of (-)-terpinen-4-ol on the rat heart were investigated using isolated left atrium isometric force measurements, in vivo electrocardiogram (ECG) recordings, patch clamp technique, and confocal microscopy. It was observed that (-)-terpinen-4-ol reduced contraction force in an isolated left atrium at millimolar concentrations...
April 20, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28434554/the-simulation-based-assessment-of-pediatric-rapid-response-teams
#5
James J Fehr, Mary E McBride, John R Boulet, David J Murray
OBJECTIVE: To create scenarios of simulated decompensating pediatric patients to train pediatric rapid response teams (RRTs) and to determine whether the scenario scores provide a valid assessment of RRT performance with the hypothesis that RRTs led by intensivists-in-training would be better prepared to manage the scenarios than teams led by nurse practitioners. STUDY DESIGN: A set of 10 simulated scenarios was designed for the training and assessment of pediatric RRTs...
April 20, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28431725/intraoperative-three-dimensional-mapping%C3%A2-of-supraventricular-tachycardia-in-a-young-fontan%C3%A2-patient
#6
James C Perry, Matthew R Williams, Suzanne Shepard, Andras Bratincsak, Cynthia Murphy, Raghav Murthy, Mohammad Ebrahim, John J Lamberti
Preoperative tachycardia is uncommon before an initial Fontan procedure. Catheter intervention can risk complications in small patients. A patient with fetal tachycardia and double inlet left ventricle underwent Norwood and bidirectional Glenn procedures. She had persistent tachycardia. A three-dimensional electroanatomic mapping system was modified for the operative procedure; it was used to identify the arrhythmia substrate and cryoablate an atrioventricular nodal tachycardia. Mapping added 20 minutes to the operation...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28429529/impaired-left-atrial-function-predicts-inappropriate-shocks-in-primary-prevention-implantable-cardioverter-defibrillator-candidates
#7
Susumu Tao, Hiroshi Ashikaga, Luisa A Ciuffo, Kihei Yoneyama, Joao A C Lima, Terry F Frank, Robert G Weiss, Gordon F Tomaselli, Katherine C Wu
INTRODUCTION: Inappropriate implantable cardioverter-defibrillator (ICD) shocks, commonly caused by atrial fibrillation (AF), are associated with an increased mortality. Because impaired left atrial (LA) function predicts development of AF, we hypothesized that impaired LA function predicts inappropriate shocks beyond a history of AF. METHODS AND RESULTS: We prospectively analyzed the association between LA function and incident inappropriate shocks in primary prevention ICD candidates...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28424438/using-cardiovascular-imaging-modalities-to-determine-cardiac-disorders-before-starting-sports-activities
#8
Özgür Ceylan, Timur Meşe, Meşe Hazım Gürsu
OBJECTIVE: We re-examined children who had previously been declared eligible to participate in competitive sports activities for cardiac disorders, using cardiac investigation protocol. METHODS: Total of 250 children (224 males [89.6%], and 26 females [10.4%]) between the ages of 8 and 17 years who had just started or were already engaged in sports activities were included in the study. Participants had detailed physical examination evaluated by a pediatric cardiologist...
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28412149/prevalence-of-arrhythmias-in-patients-with-type-2-diabetes-and-the-role-of-structural-changes-in-myocardium-in-their-development
#9
Petr Sarapultsev, Boris Yushkov, Alexey Sarapultsev
OBJECTIVE: The aim of the study was to evaluate the prevalence of arrhythmias in patients with type 2 diabetes and their relationships with the structural parameters of the heart. METHODS: A retrospective case-control study was conducted using clinical and biochemical profiles of patients with diabetes at the Endocrinology Centre and City Clinical Hospital No. 40, Ekaterinburg, Russia. RESULTS: The total study sample included 75 subjects. The average age (SD) was 48...
April 7, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28402006/virus-myocarditis-in-a-1-month-old-boy-presenting-as-two-types-of-paroxysmal-supraventricular-tachycardia
#10
Shuhei Fujita, Takeshi Futatani, Tatsuya Kubo, Masae Itamochi, Yusuke Yachi, Hidenori Iwasaki, Ayako Shimao, Shihomi Ina, Hiroyuki Higashiyama, Noboru Igarashi, Kiyoshi Hatasaki
Herein we describe the case of a 1-month-old boy with acute viral myocarditis, who presented with two kinds of paroxysmal supraventricular tachycardia, and who was cured after medical treatment. He was brought to the emergency room with poor feeding due to fever. On the third day of hospitalization, a narrow QRS tachycardia (180-200 beats/min) was detected. Echocardiography showed a high echoic area at the atrial septum around the atrioventricular node. The patient was clinically diagnosed with acute myocarditis...
April 12, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28395912/dobutamine-stress-echocardiography-impact-of-abnormal-blood-potassium-levels-on-cardiac-arrhythmias
#11
Jared G Bird, Robert B McCully, Patricia A Pellikka, Garvan C Kane
BACKGROUND: Guidelines suggest that an abnormal blood potassium level is a relative contraindication to performing dobutamine stress echocardiography (DSE). However, this has not been previously studied. METHODS: We reviewed a consecutive series of patients who had potassium testing within 48 hours of undergoing DSE for the evaluation of myocardial ischemia over a 10-year period (N = 13,198). Normal potassium range in our laboratory is 3.6-5.2 mmol/L. Hemolyzed samples were not included...
April 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28393558/supraventricular-tachycardia-and-acute-confusion-following-ingestion-of-e-cigarette-fluid-containing-ab-fubinaca-and-adb-fubinaca-a-case-report-with-quantitative-analysis-of-serum-drug-concentrations
#12
Rex Pui Kin Lam, Magdalene Huen Yin Tang, Siu Chung Leung, Yeow Kuan Chong, Matthew Sik Hon Tsui, Tony Wing Lai Mak
BACKGROUND: AB-FUBINACA and ADB-FUBINACA are structurally similar synthetic cannabinoids with potent CB1 receptor agonistic effects. Very little is known about their pharmacology and toxicology. OBJECTIVE: To report a case of supraventricular tachycardia and acute confusion after ingestion of e-cigarette fluid containing AB-FUBINACA and ADB-FUBINACA, with quantitative analysis of the serum drug concentrations. CASE REPORT: A healthy 24-year-old man ingested two drops of e-cigarette fluid which were later found to contain AB-FUBINACA and ADB-FUBINACA...
April 10, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28388306/premature-ventricular-complex-is-more-prevalent-during-acute-exacerbated-than-stable-states-of-chronic-obstructive-pulmonary-disease-and-is-related-to-cardiac-troponin-t
#13
Gunnar Einvik, Rahul Bhatnagar, Nils Henrik Holmedahl, Anke Neukamm, Torbjørn Omland, Vidar Søyseth
During acute exacerbation of chronic obstructive pulmonary disease (AECOPD), myocardial stress may be aggravated. Sparse data exist concerning the prevalence and correlates of cardiac arrhythmias in the stable and exacerbated states of COPD. We hypothesized that AECOPD is associated with increased prevalence of cardiac arrhythmias independent of COPD-severity and co-morbidity, and explored possible mechanisms. A 24-hour Holter recording was obtained in 74 patients with stable COPD and 45 patients with AECOPD (mean age 54 years, 56% women)...
April 7, 2017: COPD
https://www.readbyqxmd.com/read/28378703/-carotid-sinus-massage-is-not-a-benign-intervention
#14
R B A van den Brink, F J de Lange
Carotid sinus massage for diagnosis and termination of supraventricular tachycardia (SVT) is still a widely used vagal manoeuvre in the A&E department. However, itsefficacy is limited (termination of the SVT in approximately 20%) and carotid sinus massage may be complicated by (potentially devastating) neurologic complications in 0.2-1% of the patients. There are safer interventions without neurologic complications, such as the modified Valsalva manoeuvre (efficacy 43%) and intravenous administration of adenosine (efficacy 75%)...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28378696/-a-severe-stroke-following-carotid-sinus-massage
#15
C E P van Munster, W J C van Ballegoij, J M Schroeder-Tanka, R M van den Berg-Vos
BACKGROUND: Carotid sinus massage is a widely used method for diagnosis and treatment of supraventricular tachycardia and carotid sinus hypersensitivity. Complications, mostly neurological, can occur but are rare. Carotid stenosis is a risk factor for complications. Hearing a carotid bruit on auscultation indicates stenosis, and is a contraindication for performing carotid sinus massage. However, the sensitivity of auscultation is insufficient. CASE DESCRIPTION: A 71-year-old man with a history of hypertension and hypercholesterolemia presented to the cardiology accident and emergency department with palpitations...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28376069/supraventricular-tachycardia-associated-with-severe-anemia
#16
Daniel J Corwin, Richard J Scarfone
We present the unusual case of a 7-year-old girl with severe iron-deficiency anemia who concurrently was determined to be in a supraventricular tachycardia (SVT) rhythm. To our knowledge, the association of anemia with SVT has not been reported previously. We review the presentation of SVT, management strategies for treating both severe anemia and SVT, risks and benefits of using the classic treatments for SVT in a severely anemic patient and discuss iron-deficiency anemia-related cardiac disease.
April 4, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28374333/how-to-approach-difficult-cases-of-avnrt
#17
REVIEW
Darpan S Kumar, Thomas A Dewland, Seshadri Balaji, Charles A Henrikson
Our approach to the ablation of atrioventricular nodal reciprocating tachycardia (AVNRT), the most common supraventricular tachycardia, is as follows: We first attempt ablation in the right atrial posteroseptum anterior to the coronary sinus ostium with a 4-mm non-irrigated tip catheter. If ablation within the triangle of Koch is unsuccessful with radiofrequency (RF), we switch to cryoablation and target a more superior (mid septal) region. We also utilize cryoablation if RF ablation produces transient VA block (absence of retrograde conduction during junctional rhythm) or a fast junctional rhythm (<350 msec)...
May 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28369988/evaluation-of-left-ventricular-longitudinal-deformation-in-patients-with-and-without-st-segment-depression-during-supraventricular-tachycardia
#18
Sonia Shaabani, Saeed Sadeghian, Ali Hosseinsabet
BACKGROUND: The cumulative effect of repeated demand ischemia on left ventricular (LV) systolic function has been previously demonstrated. We evaluated the longitudinal deformation of LV myocardial fibers at systole and diastole using two-dimensional speckle-tracking echocardiography (2DSTE) in patients with and without ST-segment depression during supraventricular tachycardia. METHODS: We recruited 104 consecutive patients, who were admitted to our hospital for the ablation of atrioventricular nodal reentrant tachycardia or atrioventricular reentrant tachycardia...
March 28, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28369767/multiple-targets-for-flecainide-action-implications-for-cardiac-arrhythmogenesis
#19
REVIEW
Samantha C Salvage, Karthik H Chandrasekharan, Kamalan Jeevaratnam, Angela F Dulhunty, Andrew J Thompson, Antony P Jackson, Christopher L-H Huang
Flecainide suppresses cardiac tachyarrhythmias including paroxysmal atrial fibrillation, supraventricular tachycardia, arrhythmic long QT syndromes (LQTS), as well as the Ca(2+) -mediated, catecholaminergic polymorphic ventricular, tachycardia (CPVT). However, flecainide can also exert pro-arrhythmic effects most notably following myocardial infarction and when used to diagnose Brugada Syndrome (BrS). These divergent actions result from its physiological and pharmacological actions at multiple, interacting, levels of cellular organisation...
April 3, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28366662/association-of-paroxysmal-supraventricular-tachycardia-with-ischemic-stroke-a-national-case-control-study
#20
Jui-Kun Chiang, Hsueh-Hsin Kao, Yee-Hsin Kao
BACKGROUND AND PURPOSE: Cardioembolic stroke accounts for approximately 15%-20% of all ischemic strokes. Atrial fibrillation constitutes one-half to two-thirds of all cardioembolic stroke events. The association of paroxysmal supraventricular tachycardia (PSVT) with ischemic stroke remains unclear. A national case-control study was conducted to identify the risk factors, including PSVT, for ischemic stroke in Taiwan. METHODS: We designed a national case-control study comprising patients diagnosed with ischemic stroke (n = 5633) from 1997 to 2011; each patient from the case group was randomly matched with the control group (n = 30,895) in Taiwan...
March 30, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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